public TResult Execute <TResult>(Expression expression)
{
var q = _root.GetQueryable(_queryableExpression);
if (_enumerableRootObject == null)
{
if (expression is MethodCallExpression m)
{
var args = m.Arguments.ToArray();
var type = _root.GetType();
if (_queryableExpression != null)
{
type = _queryableExpression.Type;
}
if (type.IsGenericType)
{
type = type.GetGenericArguments()[0];
}
args[0] = Expression.Call(null, FullDbUtility.GetOfTypeMethod(type), Expression.Constant(q));
expression = m.Update(null, args);
}
}
else
{
expression = _enumerableRootObject.GetEnumerableExpression(q);
}
return(ExecuteExpression <TResult>(expression));
}
public IQueryable <TElement> CreateQuery <TElement>(Expression expression)
{
if (_enumerableRootObject == null && FullDbUtility.IsQueryableExpression(expression))
{
_queryableExpression = expression;
return(new FullDbQueryObject <TElement>(this, expression));
}
else
{
if (_enumerableRootObject == null)
{
if (expression is MethodCallExpression m)
{
var args = m.Arguments.ToArray();
args[0] = Expression.Constant(null, typeof(IQueryable <TElement>));
expression = m.Update(null, args);
}
}
var temp = new FullDbQueryObject <TElement>(this, expression);
if (_enumerableRootObject == null)
{
_enumerableRootObject = temp;
}
return(temp);
}
}
